Nooneknowsexactlyhowtheearthbegan.However,accordingtoaw...
问题详情:
No one knows exactly how the earth began. However, according to a widely __61_(accept) theory, it bagan with a “Big Bang”. Then the earth exploded __62_ (loud) and produced water vapour and many gases, __63_ (make) the earth’ s atmosphere. And then as the earth cooled down, water appeared and stayed on the surface. It was the presence of water __64_ allowed the earth to dissolve harmful gases and acids into the oceans and seas, which made __65__ possible for life to develop. And the appearance of small plants encouraged the __66_ (develop) of early shellfish and all sorts of fish. Next, green plants began to grow on land. They were followed __67_ land animals. Later, reptiles appeared for the first time , after which dinosaurs developed. However,they suddenly __68_ (appeared). Therefore, mammals rose on the earth. Finally, humans appeared and spread all over the earth. However, they are putting too much carbon dioxide into the atmosphere, making the earth too hot to live on. So __69_ life will continue on the earth will depend on whether this problem can __70_ (solve).
【回答】
61. but spend sion helped
66. better ly diately ing 70.a
知识点:语法填空
题型:未分类
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下列对诗句分析不正确的一项是( )A.“关关雎鸠,在河之洲”两句运用比喻手法,说明淑女、君子在河滩幽会,营造...
问题详情:下列对诗句分析不正确的一项是()A.“关关雎鸠,在河之洲”两句运用比喻手法,说明淑女、君子在河滩幽会,营造出一种幽静的氛围。B.“参差荇菜”一句反复使用,增强了诗歌的节奏感,也展现了《诗经》回环往复、一唱三叹的特*。C.“悠哉悠哉,辗转反侧”以行动来反映君...
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在下列向量组中,可以把向量表示出来的是( )A B. C. D.
问题详情:在下列向量组中,可以把向量表示出来的是( )A B. C. D. 【回答】知识点:高考试题题型:选择题...
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下列物质中所含氮元素化合价最低的是 A.NO2 B.N2 ...
问题详情:下列物质中所含氮元素化合价最低的是 A.NO2 B.N2 C.NH4Cl D.HNO3【回答】C知识点:各地中考题型:选择题...
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下列各组中,含有离子晶体、分子晶体、原子晶体各一种的是( )A.HCl、H2SO4、S ...
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